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Related Parties - Repurchase of Corebridge common stock (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions		12 Months Ended
	Nov. 04, 2025	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Related Party Transaction [Line Items]
Purchase of common stock		$ 2,141	$ 1,803	$ 503
Total common stock
Related Party Transaction [Line Items]
Purchase of common stock	$ 500
Underwriting Agreement \| AIG
Related Party Transaction [Line Items]
Number of shares to be sold (in shares)	32.6
Sale of stock, price per share (in dollars per shate)	$ 31.03
Shares repurchased (in shares)	16.1
Related Party \| Repurchase of Corebridge Common Stock from Blackstone
Related Party Transaction [Line Items]
Shares repurchased (in shares)				1.9
Purchase of common stock				$ 35
Related Party \| Repurchase Of Corebridge Common Stock From AIG
Related Party Transaction [Line Items]
Shares repurchased (in shares)			8.0	17.2
Purchase of common stock			$ 200	$ 315